Australian price guide · 2026
How much does hot water system replacement
cost in Australia?
Remove the old unit, supply and install a new electric, gas or heat-pump hot water system including connections and compliance.
Typical total (AU)$1,600–$2,800
What's in a typical quote
| Line item | Typical range |
|---|---|
| Supply Rheem 250L electric hot water unit | $850–$1,300 |
| Install + commission | $400–$650 |
| Removal + disposal of old unit | $150–$250 |
What affects the price
- Tank size (125L vs 315L)
- Electric vs gas vs heat-pump
- Access — roof vs ground level
- Location — metro vs regional
How to get the most accurate price
Prices vary a lot by region, access, and job specifics. For a real quote, get 2–3 licensed plumbers to assess the job — most reputable tradies quote for free. GST (10%) is added on top of the ranges shown.
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